Komatsu PC400LC-5 Operation & Maintenance Manual page 174

24. SERVICE PROCEDURE
l When deciding the ratio of antifreeze to water, check the lowest
temperature in the past, and decide from the mixing rate table
given below.
It is actually better to estimate a temperature about 10°C lower
when deciding the mixing rate.
Mixing rate of water and antifreeze
Min.
atmospheric
temperature
Amount of
antifreeze
Amount of
water
A
WARNING
Antifreeze is flammable, so keep it away from any flame.
l
Use city water for the cooling water.
If river water, well water or other such water supply must be
used, contact your Komatsu distributor.
l We recommend use of an antifreeze density gauge to control the
mixing proportions.
A
WARNING
When removing drain plug, avoid pouring coolant on yourself.
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